Thermo Scientific™ EZ-Link™ Sulfo-NHS-LC-Biotin and Labeling Kits

Biotinylate protein amines (e.g., lysines) with this very popular mid-length (22.4A), water-soluble, NHS-ester biotinylation reagent for antibody or cell-surface labeling.

Brand: Thermo Scientific™

Manufacturer Part Number: 21327

UNSPSC: 41115824

Code: PN

Additional Details:
Additional Details: Weight: 1.81440kg

Product Code. 10688844

Quantity Price
1 £ 136.0 / 8mg
EU Stock 60
Add to basket

Description and Specification


Storage Requirements -20°C with desiccant
Formulation Sulfo-NHS ester of biotin with a 6-aminocaproic acid spacer
Cleavable No
Molecular Weight 556.59
Sufficient For 8 uses to label a total of 96mg of IgG using typical conditions
Spacer Arm Length 22.4
Description EZ-Link Sulfo-NHS-LC-Biotin, No-Weigh Format
Membrane Permeable No
Chemical Reactivity Amine
PEGylated No
Quantity 8 x 1mg
Water Soluble Yes


  • Water-soluble analog of NHS-LC-Biotin
  • Reacts with primary amines at pH 7-9 in non-amine-containing buffers such as borate, carbonate or phosphate buffers
  • Negative charge of -SO3 group keeps biotinylation localized at the cell surface
  • Creates an amide bond
U.S. Patents 5,892,628 and 5,872,261.


Technical documents